The invention provides a preparation device for a natural vegetable ocherous pigment, and belongs to the field of the preparation of pigments. The preparation device for the natural vegetable ocherouspigment comprises a box body I and a box body II, wherein a container I is arranged in the box body I; a container II is arranged in the box body II; the box body I is provided with an opening I; theopening I is connected with a cover plate I in a hinging manner; the cover plate I is fixedly provided with a drive motor I; an output shaft of the drive motor I is connected with an agitating shaftI; the box body II is provided with an opening II; the opening II is connected with a cover plate II in the hinging manner; the box body II is horizontally fixedly provided with a separating plate; the separating plate is fixedly provided with a drive motor II; an output shaft of the drive motor II is connected with an agitating shaft II. The preparation device has advantages of having a simple structure, being environment-friendly, sufficiently utilizing a vegetable coloring matter solution produced in a production process of Chinese art paper and comprehensively utilizing an obtained resource.